Space heater



v. BlLlNSKl SPACE HEATER June 17, 1969 Sheet Filed July 27, 1967 v IKENTOR J w/W' 5v wast? E V m M m w w 3 Q June 17, 1969 Sheet Filed July27, 1967 ATTORNEY z w 1% J11: |1| l i l I I I z ,A l'ullIY ll M N N N NI United States Patent 3,450,346 SPACE HEATER Victor Bilinski, 5007 N.Warnock St., Philadelphia, Pa. 19141 Filed July 27, 1967, Ser. No.656,474 Int. Cl. F24h 3/08; F28d 15/00 US. Cl. 237--70 Claims ABSTRACTOF THE DISCLOSURE Summary It is an important object of the presentinvention to provide a space-heater construction of the type describedwherein essentially all of the fluid, flowing both away from andreturning to the heat source are employed to dissipate heat to thesurrounding space, to achieve considerably increased efficiency, andpermit of smaller heater units for a given size space.

It is a further object of the present invention to provide a spaceheater having the advantageous characteristics mentioned in thepreceding paragraph, which is extremely simple in construction, durableand reliable throughout a long useful life, and which can beeconomically manufactured for sale, maintenance and use at a reasonablecost.

Other objects of the present invention will become apparent upon readingthe following specification and referring to the accompanying drawing,which form a material part of this disclosure.

The invention accordingly consists in the features of construction,combinations of elements, and arrangements of parts, which will beexemplified in the construction hereinafter described, and of which thescope will be indicated by the appended claims.

Brief description of the drawing FIGURE 1 is a longitudinal sectionalview showing a space heater constructed in accordance with the teachingsof the present invention.

FIGURE 2 is a transverse sectional view taken generally along the line22 of FIGURE 1.

FIGURE 3 is a longitudinal sectional view similar to FIGURE 1, butshowing a slightly modified embodiment of space heater of the presentinvention.

FIGURE 4 is a partial longitudinal sectional view similar to FIGURES 1and 3, but illustrating another slightly modified embodiment.

FIGURE 5 is a partial transverse sectional view taken generally alongthe line 5-5' of FIGURE 4.

FIGURE 6 is a longitudinal sectional view showing a further embodimentof space heater of the present invention.

FIGURE 7 is a cross sectional view taken generally along the line 77 ofFIGURE 6.

Description of the preferred embodiments Referring now more particularlyto the drawings, and specifically to FIGURES 1 and 2 thereof, a spaceheater is there generally designated 10, and includes elongate conduitmeans 11 located to extend through a space to be heated. At oppositeends of the conduit means -11 are respective connection means 12 and 13,while the conduit ice means 11 is provided substantially throughout itslength with a plurality of heat-radiating fins 14 circumposed about theconduit means.

More specifically, the conduit means 11 may include an elongate singleconduit or tube 18, fabricated of any suitable heat-conducting material,such as metal, and may advantageously be of circular cross section, seeFIGURE 2. Extending longitudinally of and within the single conduit ortube 18, and transversely or diametrically thereacross, is a partition19, also advantageously of suitable heat-conductive material, whichsubdivides the conduit 18 into a pair of longitudinally extending orparallel passageways 20 and 21 disposed in side-by-side relation withinthe tube, on opposite sides of the partition. In practice, the fins 14may be integrally aflixed, or detachably circumposed about the tube 18,the several fins being disposed in generally parallel adjacent, spacedrelation with respect to each other for increasing heat dissipation fromthe tube. v The connection means '12 may be defined by a tube or conduit24 in the configuration of a loop connected in fluid communicationbetween the adjacent, right-hand ends of passageways 20 and 21, as seenin FIGURE 1. The loop 24 of connection means 12 may be providedinteriorly of one side with a heat source or generator 25-, sayextending exteriorly of the loop for connection, as by wires 26, to asource of electrical energy. Also, a thermostat 27 may be provided at alower region of the loop 24, and the system sealed against loss offluid.

The connection means 13, connecting the adjacent, lefthand ends ofpassageways 20 and 21, as seen in FIGURE 1, may also include a tubularloop 28 connected in fluid communication between the passageways 20 and21, and having in one region thereof a heat generator or source 29provided for connection to electrical, or other suitable energy, as at30. Advantageously, an expansion chamber may be provided, as at 31,communicating with one of the loops 24, 28, being illustrated as incommunication with the latter.

It will now be appreciated that the pair of longitudinally extending,side-by-side passageways 20 and 21, each have their adjacent pair ofends connected in fluid communication, as by connection means 12 and 13,so as to define a closed fluid circuit, adapted to contain a heatingmedium, such as water, or other suitable fluid. The fluid may pass aboutthe circuit of passageway 20, connection means 13, passageway 21 andconnection means 12, in continuous movement, receiving heat as it passesthrough the connection means, so that heat is efliciently dissipated bythe contained fluid along substantially the entire extent of bothpassageways 20 and 2-1.

The slightly modified embodiment of space heater shown in FIGURE 3 isgenerally designated 10a, and in? cludes an elongate conduit means 11awhich may be of a thermally conductive tube 18a of generally circularcross section and having contained therein a longitudinally disposed,diametrically extending partition 19a. Surrounding the tube 18a, andarranged in spaced relation therealong, are a plurality ofheat-dissipating fins 14a, which may be fixedly or detachably secured tothe conduit.

The partition 19a subdivides the conduit or tube 18a into a pair oflongitudinally extending, side-by-side passageways 20a and 21a. At onepair of adjacent ends of the passageways 20a. and 21a, say theright-hand end as seen in FIGURE 3, there is provided a connection means12a. connecting together the passageways in fluid communication. Theconnection means 12a may be defined by a tubular loop 24a containing aheat generator 25a and provided with a superposed expansion tank 311:.

At the other, left-hand pair of adjacent ends of passageways 20a and21a, there is provided connection means 13a connecting together thepassageways in fluid communication. The connection means 13a may beprovided by a cap or end closure 28a for the tube 18a, the end closurebeing spaced from the adjacent terminus of partition 19a to affordcommunication between the passageways 20a and 21a.

Thus, the space heater 10a of FIGURE 3 also provides a continuouscircuit for containing a heating fluid, as through passageway 20a,connection means 13a, passageway 21a and connection means 12a. Hereagain, substantially the entire extent of fluid movement through bothpassageways 20a and 21a is in a heat-dissipating relation with respectto the surrounding environs, for maximum heating efficiency.

Another slightly modified embodiment of space heater is shown in FIGURES4 and 5, there generally designated 10b, wherein elongate conduit meansis generally designated 11b and defined by a pair of separate,longitudina ly extending tubes or conduits 20b and 21b, disposed inside-by-side, spaced relationship. The adjacent tubes or conduits 20band 21b, of course, each include an internal passageway for containedfluid, so that the passageways thereof are in side-by-side relationshipextending along the space to be heated. In practice, it may beadvantageous to fabricate the conduits or tubes 20b and 21b of generallysemicircular cross-sectional configuration, as seen in FIGURE 5, withtheir chordal or diametral sides disposed in adjacent, spaced, facingrelation with respect to each other. A plurality of heat-dissipatingfins 14b are disposed in adjacent, parallel spaced relation with respectto each other, and fixedly or detachably secured about the spacedconduits 20b and 21b. If desired, the fins 14b may be configured tooccupy the space between conduits 20b and 21b.

At one pair of adjacent ends of conduits 20b and 21b, there is providedsuitable connection means, such as 1211, which may be essentially thesame as connection means 12a, to connect the conduits in fluidcommunication with each other and afford a source of heat to containedfluid.

The other, left-hand pair of adjacent ends of conduits 20b and 21b arealso connected in fluid communication, as by suitable connection'means13b, which may be defined by a cap, 28b surrounding the adjacent tubeends, and a filler member or plate 23 interposed between the tubes.Thus, a closed fluid circuit is defined by the space heater 10b ofFIGURES 4 and through the conduit 20b, connection means 13b, conduit 21band connection means 12b, wherein the conduits 20b and 21b afford pathsof fluid movement throughout the space to be heated, with the fluidtherein in heat-dissipating relation with the space being heated.

In FIG. 6 is shown a further embodiment of the present invention, aspace heater there being generally designated c, including elongateconduit means 11c for extension through the space to be heated, andhaving at its opposite ends connection means 120 and 130.

The conduit means 11c includes a pair of conduits or tubes c and 210,the latter being smaller and interiorly of the former. In practice, theconduits or tubes 20c and 21c may be of generally circularcross-sectional configuration, the latter being considerably smallerthan the former for location in spaced relation therein. That is, theinner conduit or tube 210 extends longitudinally within the outer tube20c, so that the space between the interior of the outer tube and theexterior of the inner tube defines one fluid passageway, and the spacewithin the inner tube defines another fluid passageway, whichpassageways extend in side-by-side relation longitudinally along thespace to be heated.

The outer conduit 20c may be provided with a plurality of fins 14cextending circumferentially thereabout and projecting radially therefromfor dissipating heat to the atmosphere.

One pair of adjacent ends of conduits 20c and 210, the right-hand end asseen in FIGURE 6, is connected in fluid communication by the connectionmeans 120, which may be substantially identical to the connection means12a. The other, left-hand pair of ends of conduits 20c and 21c may beconnected in fluid communication by the connection means 130, which maybe constituted of a cap 280.

Thus, the heater of FIGURES 6 and 7 also provides a pair of elongate,side-by-side fluid passageways through the conduits 20c and 21c, bothserving to dissipate heat to the surrounding environs, substantiallythroughout their entire length.

From the foregoing, it is seen that the present invention provides aspace heater which fully accomplishes its intended objects and isotherwise well adapted to meet practical conditions of manufacture anduse.

Although the present invention has been described in some detail by wayof illustration and example for purposes of clarity of understanding, itis understood that certain changes and modifications may be made withinthe spirit of the invention and scope of the appended claims.

What is claimed is:

.1. A space heater comprising elongate conduit means extending along aspace to be heated and having a pair of longitudinally extending fluidpassageways in adjacent side-by-side heat exchanging relation, aplurality of heatradiating fins circumposed about and extending fromsaid conduit means, a first fluid conducting loop depending from andconnected in fluid communication between one pair of adjacent ends ofsaid passageways, a second fluid conducting loop depending from andconnected in fluid communication between the other pair of adjacent endsof said passageways, said conduit means and loops defining a closedcircuit for containing and continuously conducting a unidirectionallyflowing fluid, and heat-generating means associated with each of saidloops in the region of upward fluid-flow therethrough, to provide aconvection current of said fluid and substantially uniform temperaturedistribution along said conduit means.

2. A space heater according to claim 1, said conduit means comprising asingle tube, and a longitudinal partition in said single tubesubdividing the latter to define said pair of passageways.

3. A space heater according to claim 2, said single tube being ofgenerally circular cross section, and said partition extendingdiametrically of said tube.

4. A space heater according to claim 1, said conduit means comprising apair of adjacent spaced tubes, and said fins each extending about saidpair of tubes.

5. A space, heater according to claim 4, said tubes each being generallysemicircular and arranged with their diametral sides in adjacent facingrelation.

References Cited I UNITED STATES PATENTS 1,511,056 10/1924 Ercanbrack-142 1,835,323 12/1931 Olson et al. 165142 X 2,509,138 5/1950 Dorn 237662,617,598 11/1952 Sanders 2375 3,179,788 4/1965 Uhlig 23716 X EDWARD J.MICHAEL, Primary Examiner.

US. Cl. X.R.

